Patriot54,
You should simply clean the aquarium out with hot water. If you like, you can mix in some non-iodized salt to the water which you are cleaning with. I have always found plain hot water to work fine. You may want to use a razor blade to scrape off any algae or coralline algae which you can't remove from the glass with water alone.
For other components just use vinegar. Vinegar is an excellent cleaner and can make a old components like new. Just be sure not to use the vinegar on the actual glass. If you don't have vinegar, you could also use lemon juice, although vinegar works best.